.TH lis_esolver_get_specific_residualnorm 3 "24 Jan 2021" "Man Page" "Lis Library Functions"

.SH NAME

lis_esolver_get_specific_residualnorm \- Get the relative residual norm for the specified eigenpair from the eigensolver

.SH SYNOPSIS

#include "lis.h"

\fBLIS_INT lis_esolver_get_specific_residualnorm\fR(\fBLIS_ESOLVER esolver\fR, \fBLIS_INT mode\fR, \fBLIS_REAL *residual\fR);

.SH DESCRIPTION

Get the relative residual norm \fI||lx - Ax||_2/||lx||_2\fR for the specified eigenpair from the eigensolver.

.SH INPUT

.IP "\fBesolver\fR"
The eigensolver

.IP "\fBmode\fR"
The mode number of the eigenpair

.SH OUTPUT

.IP "\fB*residual\fR"
The residual norm

.SH EXIT STATUS

The following exit values are returned:
.IP "0"
The process is normally terminated
.IP "unspecified"
An error occurred

.SH SEE ALSO

.BR lis (3)
.PP
http://www.ssisc.org/lis/

